While this certainly isn't the best season finale so far, My Point of No Return is a hilarious episode that deals with all the characters in a great way.
Kim and J.D. getting back into being a couple again and feeling comfortable around each other, J.D. now forgiven Kim, is a great way to start off the episode as his life starts spiralling down afterwards. I like the fact that in season six, since Kim has been pregnant J.D. has only slept with one woman, and that's Kim, showing that subconsciously he still misses that relationship. After the revelation, he of course resented her but has now come to almost forgiving her. Unfortunately, he doesn't realise that his casual comments has put Kim directly in his life, since he convinved her to quit, move and stay with him. The theme plays quite well in the episode. I'm a fan of the J.D-Kim relationship as it does have room for comedy, such as the beets and pregnant sex.
The parallel of Keith-Elliot, a relationship that I've always found funny but not been too into until My Cold Shower, which changed my mind, was quite good as Elliot gets cold feet, but could have been a lot funnier. Of course, the Brain Trust and Keith have that covered with some of the most hilarious moments in the episode, especially Ted, and Todd's need to pull off his pants. Doug's jealousy was great as was Keith's expression throughout the episode (I'm not walking through fire!) but even though I know he's a writer, the show is really overusing Lloyd, who I find is funnier in smaller doses (4 0r 5 episodes a season like 1-5, not every episode).
The godfather plot is fantastic, J.D. missing the chance of a lifetime and Jordan's orders for Cox, aswell as J.D. calling Jack smug and opting to be godmother. This plot is also a great funny storyline and shows Dr. Cox and Jordan bonding. I wish Turk and Carla had been in the episode more but the few scenes they were in were terrific.
The ending was a good summation of life but the cliffhanger isn't quite as effective as past seasons have been. If J.D. and Elliot do hook up, it will be reusing plots (His Story II, where Elliot has doubts about her serious relationship so goes for J.D. who's there for him). It's not exactly like that but there are only minor changes.
Overall, the episode is superb, my favourite plots being Cox's and Janitor's, but the cliffhanger is a little weak and doesn't have the same impact of previous finales.